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[Amps] Crowbar components

Subject: [Amps] Crowbar components
From: (Frank Goenninger)
Date: Wed, 21 Jul 2004 17:47:58 +0200
List-post: <>
Hi all on the list:

There have now been several posts here pointing

as a suitable crowbar circuit. I want to copy that 

When searching for suitable components I could not
find a suitable opto-coupled Diac as shown in the
mains circuit. 

My HV transformer will draw abt. 21A of current so
I need a Diac able to withstand that or I have to
substitute that part with ??? A diac controlling
a thyristor ? Or ?? 

Are there any such diacs or what would a suitable
replacement circuit not altering speed too much
look like? 

Thx for your help!

73, Frank DG1SBG

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